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my touhpad is too slow (not so sensitive)!

tl;dr: use synclient to setup your touchpad instead of Mouse & Touchpad options on System Settings.

After installing Ubuntu 15.04 on my new HP 240, my first reaction was “well, my touchpad sucks, it is too slow”. But, what I tried to say was “it is not sensitive enough”. I use my touchpad (and probably you too with the tip of my finger. But, in order to use my new laptop, I need to use almost my whole fingertip! So, after googling for a while, I found this post with the solution: synclient. This utility enable us to configure our touchpad in a simple way. There is a lot of options to set up, but in order to solve this problem, you only need to change FingerLow and FingerHigh. To know what is your current configuration, execute:

synclient | grep FingerLow
synclient | grep FingerHigh

In order to change these values, execute:

synclient FingerLow=8 && synclient FingerHigh=10

Higher values implies less sensitivity. Finally, to make this change persisntent after rebooting, do the following: